CN2274707Y - Valve - Google Patents

Abstract

The utility model discloses a rotating valve used for conveying the fluid and the slurry in the industrial pipeline and equipment. The utility model comprises a valve rod, an end cover, a valve shell body and a sealing component. The working curved surface of a stopping body is smaller than the continuous curved surface of a half ball in a spherical cap shape. When the valve is in the closing state, the work curved surface of the stopping body and the inner surface of the valve shell body do not form a gap. The sediment assembled on the inner surface of the valve shell body is scraped into a flowing path by the stopping body when the valve is opened. The utility model has the advantages of flexible opening and closing, simple structure, low manufacture cost, good sealing performance, wear resistance, etc.

Description

Valve

The utility model belongs to valve, especially for the rotating valve of conveyance fluid and slurry in industrial pipeline and the equipment.

The patent No. a kind of semispherical valve that has been " 92241447.5 " " semispherical valve " patent disclosure, the relative ball valve of this structure has many advantages, but between body and valve housing is semi-open state, when valve is in closed condition, by the working curved surface of body still some area stay in the valve housing, form the gap with the internal surface of housing, like this when slurry body is particularly carried the slurry that contains the solid granular material, consolidation settling thing in the gap, the Open valve difficulty.The processing technology more complicated by body of this valve, manufacture cost is higher.

Main purpose of the present utility model is to provide a kind of valve by body that has less than the spherical continuous operation curved surface of hemisphere, to overcome the deficiency of above-mentioned valve.

Next purpose of the utility model is to provide a kind of Sealing of above-mentioned valve.

Next purpose of the utility model is to provide wearing layer in a kind of runner of above-mentioned valve.

The utility model is achieved in that it has valve rod, end cap, valve housing, Sealing, and its improvements are that the working curved surface by body is the spherical continuous curve surface less than hemisphere.

Above-mentioned valve by body can be housing.

Above-mentioned valve can be to have runner by body, the formed cavity of runner is an incomplete garden column cavity, the curved surface of this cavity is with non-intersect by the working curved surface of body.

The circle radius at the bottom of the spherical crown of body of above-mentioned valve is slightly larger than the exradius of Sealing.

The Sealing of above-mentioned valve can be the elastic annular body with cavity.

Above-mentioned valve can be to be lined with the cast stone layer in the runner of valve.

Above-mentioned valve can be to be lined with ceramic layer in the runner of valve.

The utility model valve is in off position the time, working curved surface by body can not form the gap with the internal surface of valve housing, the sediments that concentrates at the valve housing internal surface is cut off body and blows into runner when valve opening, it is flexible that it has switch, low cost of manufacture simple in structure and good seal performance and advantage such as wear-resisting.

Fig. 1: the valve master looks sectional view.

The A of Fig. 2: Fig. 1-A sectional view.

Fig. 3: shell construction is by the plan view of body.

Fig. 4: Fig. 3 is by the plan view of body.

Fig. 5: plan view by body with runner.

The plan view of Fig. 6: Fig. 5 by body.

Fig. 7: the upwarding cutaway view of Sealing.

Fig. 8: the plan view of Sealing.

Accompanying drawing has provided two embodiments of the utility model.

With reference to accompanying drawing, in conjunction with the embodiments the utility model is described further.

Embodiment 1, Fig. 1, Fig. 2 has provided the concrete structure of present embodiment valve, it has valve rod 6, end cap 2, valve housing 1, Sealing 4, end body 3 as Fig. 3, shown in Figure 4, its working curved surface 7 is the spherical continuous curve surfaces less than hemisphere, the end circle radius of spherical crown is slightly larger than the exradius of Sealing 4, by body is a shell construction, when valve in off position the time, be in solid line position among Fig. 2 by body, its working curved surface 7 can not form the gap with the valve housing internal surface, the sediments that concentrates at the valve housing internal surface is when valve opening, be cut off body and blow into runner, Sealing 4 is as Fig. 7, shown in Figure 8, be an elastic annular body with cavity.Wearing layer 5 is to be lined with the cast stone layer or to be lined with ceramic layer in the runner of valve.

Embodiment 2, and the basic structure of present embodiment valve and embodiment's 1 valve basically identical is different by the structure of body, and Fig. 5, Fig. 6 have provided the concrete structure of this example by body.Have runner 8 on body, runner 8 formed cavitys are incomplete cylindrical cavities, and the curved surface 9 of this cavity is non-intersect with the working curved surface 7 by body.The present embodiment valve has identical advantage with embodiment's 1 valve.

Claims (7)

1, a kind ofly be used for the rotating valve that industrial pipeline and equipment fluid and slurry are carried, it has valve rod, end cap, valve housing, Sealing, it is characterized in that working curved surface by body is the spherical continuous curve surface less than hemisphere.

2, valve according to claim 1 is characterized in that said is housing by body.

3, valve according to claim 1 is characterized in that saidly having runner on the body, and the formed cavity of runner is an incomplete cylindrical cavity, and the curved surface of this cavity is non-intersect with the working curved surface by body.

4,, it is characterized in that at the bottom of the spherical crown of body circle radius is slightly larger than the exradius of Sealing according to claim 2 and 3 described valves.

5, valve according to claim 4 is characterized in that Sealing is an elastic annular body with cavity.

6, valve according to claim 5 is characterized in that being lined with the cast stone layer in the runner of valve.

7, valve according to claim 5 is characterized in that being lined with ceramic layer in the runner of valve.

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